The manhunt for the three suspects believed to be responsible for the death of Illinois police officer Lieutenant Charles Joseph Gliniewicz has entered the second day. So far, the more than 24-hour operation has yielded no results.

32-year veteran of the Fox Lake Police Department, Gliniewicz was shot while on duty around 8 a.m. local time on Tuesday. The officer was pursuing three suspects – two white men and a black man – described as suspicious. They were also considered to be armed and dangerous.

Helicopters were dispatched to give assistance to around 100 officers early on Wednesday. About 48 police dogs are also aiding in the search. The manhunt involves the FBI, US Marshals and SWAT teams. Residents have been urged to stay indoors.

04 September 2015

17:54 GMT

Only description of suspects is still the one provided by Gliniewicz before he was shot #FoxLake

Investigators feel “optimistic” because the videos that have been received as they are coming “in chronological” order, Commissioner George Filenko told the press. He said additional video footage of the area has been recovered and that it includes images of people that police are interested in talking to.